Catalytic Effect of Silicon Carbide on the Composite Anode of Fuel Cells

Funding Agencies|Swedish Research CouncilSwedish Research CouncilEuropean Commission [2015-05876]; HEC-NRPU [9889]
High efficiency, fuel flexibility, and sustainable energy conversion make fuel cells attractive compared to conventional energy systems. The direct ethanol fuel cells have attracted much attention because of the direct utilization of ethanol fuel. Anode materials are required to enhance the catalytic activity of the liquid fuel, which oxidize the fuel at lower operating temperature. Therefore, the catalytic effect using silicon carbide has been investigated in the LiNiO2-delta anode. The material has been characterized, and it is found that SiC shows a cubic structure and LiNiO2-delta exhibits a hexagonal structure, while the LiNiO2-delta-SiC composite exhibits a mixed cubic and hexagonal phase. Scanning electron microscopy depicts that the material is porous. The Fourier transform infrared spectroscopy analysis shows the presence of Si-O-Si, Si-C, C=O, and Si-OH bonding. The LiNiO2-delta-SiC composite (1:0.3) exhibited a maximum electrical conductivity of 1.34 S cm(-1) at 650 degrees C with an electrical band gap of 0.84 eV. The fabricated cell with the LiNiO2-delta-SiC anode exhibits a power density of 0.20 W cm(-2) at 650 degrees C with liquid ethanol fuel. The results show that there is a promising catalytic activity of SiC in the fuel cell anode.

Ali, AmjadCOMSATS Univ Islamabad, Pakistan; Univ Okara, Pakistan (författare)
Ahmad, BanLinköpings universitet,Industriell miljöteknik,Tekniska fakulteten(Swepub:liu)banah05 (författare)
Mushtaq, Muhammad NaveedCOMSATS Univ Islamabad, Pakistan (författare)
Ahmad, Muhammad AshfaqCOMSATS Univ Islamabad, Pakistan (författare)
Raza, Asif HassanCOMSATS Univ Islamabad, Pakistan; China Univ Geosci, Peoples R China (författare)
Akbar, MuhammadCOMSATS Univ Islamabad, Pakistan (författare)
Raza, RizwanLinköpings universitet,Halvledarmaterial,Tekniska fakulteten,COMSATS Univ Islamabad, Pakistan(Swepub:liu)rizra21 (författare)
Syväjärvi, MikaelLinköpings universitet,Halvledarmaterial,Tekniska fakulteten(Swepub:liu)miksy08 (författare)
COMSATS Univ Islamabad, PakistanCOMSATS Univ Islamabad, Pakistan; Univ Okara, Pakistan (creator_code:org_t)

Ingår i:ACS Applied Energy Materials: AMER CHEMICAL SOC4:7, s. 6436-64442574-0962

Av författaren/redakt...: Sarfraz, Amina; Ali, Amjad; Ahmad, Ban; Mushtaq, Muhamma ...; Ahmad, Muhammad ...; Raza, Asif Hassa ...; visa fler...; Akbar, Muhammad; Raza, Rizwan; Syväjärvi, Mikae ...; visa färre...

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